2017MNRAS.466.5020H

Query : 2017MNRAS.466.5020H

2017MNRAS.466.5020H - Mon. Not. R. Astron. Soc., 466, 5020-5032 (2017/April-3)

Three new pulsating sdB stars discovered with SuperWASP.

HOLDSWORTH D.L., OSTENSEN R.H., SMALLEY B. and TELTING J.H.

Abstract (from CDS):

We present an analysis of three new pulsating subdwarf B stars discovered in the Super Wide Angle Search for Planets archive. Two of the stars, J1938+5609 and J0902-0720, are p-mode pulsators; J1938+5609 shows a pulsation at 231.62 d–1 (P = 373 s; 2681 µHz) with an amplitude of 4 mmag, whereas J0902-0720 pulsates at frequencies 636.74 (P = 136 s; 7370 µHz) and 615.34 d–1 (P = 140 s; 7122 µHz), with amplitudes 7.27 and 1.53 mmag, respectively. The third star, J2344-3427, is a hybrid pulsator with a p-mode frequency at 223.16 d–1 (P = 387 s; 2583 µHz) and a corresponding amplitude of 1.5 mmag, and g modes in the frequency range 8.68-28.56 d–1 (P = 3025-9954 s; 100–331 µHz) and amplitudes between 0.76 and 1.17 mmag. Spectroscopic results place J1938+5609 and J2344-3427 among the long-period or hybrid pulsators, suggesting there may be further modes in these stars below our detection limits, with J0902-0720 placed firmly amongst the p-mode pulsators.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): asteroseismology - techniques: photometric - stars: oscillations - subdwarfs - subdwarfs

CDS comments: PG 0865+121 is a misprint for PG 0856+121.

Simbad objects: 113

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Number of rows : 113
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 JL 166 HS* 00 12 43.0225859352 -45 51 15.473110068   15.01 15.24     sdOB 13 0
2 PG 0014+068 HS* 00 16 54.2537878176 +07 04 30.043437816   15.3       sdO 73 1
3 CD-48 106 HS* 00 31 41.6505545016 -47 25 20.030088576   12.12 12.45     sdB 34 0
4 HS 0039+4302 HS* 00 42 42.3970259304 +43 19 00.846907716   15.1       sdB 28 0
5 EC 00404-4429 HS* 00 42 48.3762666960 -44 13 25.218650964   13.0 13.4     sdB 18 0
6 PG 0048+091 HS* 00 51 26.9371074840 +09 21 32.879383380   14.454 14.261 14.505   sdOB+F5V 32 0
7 Feige 11 HS* 01 04 21.6747168600 +04 13 37.054495956 10.847 11.826 12.065 12.183 12.324 sdB2VIHe4 128 0
8 FBS 0117+396 HS* 01 20 22.9396883304 +39 50 59.434295604   15.15 15.34     sdB+dM 28 0
9 V* EO Cet HS* 01 23 43.2471248112 -05 05 45.831024564   12.21 12.65     sdOV+F4V 65 0
10 GD 1053 HS* 01 56 31.8993527208 -13 54 26.457259860   12.2   12.63 12.40 sdOB 20 0
11 V* BI Ari HS* 01 57 27.8862042360 +18 27 39.992930280   15.27       sdBO 17 0
12 HE 0218-3437 V* 02 20 59.7691316472 -34 23 35.317169052     13.39     ~ 10 0
13 HE 0230-4323 HS* 02 32 54.6772339416 -43 10 27.791218308     13.78     sdB 33 0
14 * 23 Tau Be* 03 46 19.5858871361 +23 56 54.092177220 3.70 4.12 4.18   4.16 B6IV(e) 432 2
15 GALEX J041550.2+015421 HS* 04 15 50.1643047048 +01 54 20.940589764   13.92 14.06 14.36   sdB 16 0
16 KUV 04421+1416 HS* 04 44 56.8983457992 +14 21 50.176351836   15.28       sdB 39 0
17 HS 0444+0458 HS* 04 47 18.6321638088 +05 03 34.811637912   15.44 15.53     sdB 18 0
18 GALEX J045515.2+130530 HS* 04 55 15.2317052592 +13 05 29.689559052   17.6   17.3   sdB 18 0
19 EC 05217-3914 HS* 05 23 25.4710949784 -39 11 54.080470284 14.21 15.31 15.55 15.94   sdB 25 0
20 KPD 0629-0016 HS* 06 31 53.8164813456 -00 19 13.080321372 14.12 14.98 14.94 15.18   sdB 32 1
21 GALEX J063952.0+515658 HS* 06 39 52.1822938800 +51 57 01.262380032   11.84 12.00     sdBHe1 16 0
22 V* DW Lyn HS* 07 07 09.7960158264 +60 38 50.159268348   14.7   15.34   sdB 56 1
23 GALEX J080656.7+152718 HS* 08 06 56.6844688416 +15 27 19.968237288   14.30 14.69 14.72 14.80 sdB 20 0
24 V* DV Lyn HS* 08 19 17.7185616456 +42 33 38.726792712   16.021 16.366     sdOB 32 0
25 V* HK Cnc HS* 08 59 02.6445309720 +11 56 27.841260300   13.47 13.480     sdB3VIIHe0 37 0
26 GALEX J090204.5-072049 HS* 09 02 04.5196189416 -07 20 47.552714124   11.88 12.43     sdB 6 0
27 PG 0907+123 HS* 09 10 25.4347130256 +12 08 27.078221868   13.76 13.92 14.19   sdB2VIHe2 34 0
28 [BSL2001] J091202.4740-645154.027 * 09 12 02.4740 -64 51 54.027           ~ 3 0
29 [BSL2001] J091203.4033-645157.635 * 09 12 03.4033 -64 51 57.635           ~ 3 0
30 [BSL2001] J091203.6120-645151.931 * 09 12 03.6120 -64 51 51.931           ~ 3 0
31 [BSL2001] J091203.9496-645156.820 * 09 12 03.9496 -64 51 56.820           ~ 3 0
32 [BSL2001] J091204.5334-645147.956 * 09 12 04.5334 -64 51 47.956           ~ 3 0
33 [BSL2001] J091204.9413-645144.132 * 09 12 04.9413 -64 51 44.132           ~ 3 0
34 V* DT Lyn HS* 09 14 55.3780066224 +45 23 41.396157600   14.92       sdBO 29 0
35 PG 0958-116 HS* 10 00 41.8235310624 -11 51 34.585561008   15.01 15.26     sdB 24 0
36 V* UX Sex HS* 10 25 17.3363524296 -09 20 40.570885644   15.89       sdB+ 29 0
37 PG 1033+201 HS* 10 36 38.9356575360 +19 52 02.291746692   15.66 15.637     sdB+? 21 0
38 V* UY Sex HS* 10 50 02.8265487864 -00 00 36.879009588 12.063 13.184 13.474 13.606 13.769 sdO9VIIHe6 166 0
39 PG 1142-037 HS* 11 44 57.2433920664 -03 56 53.277278316   15.729 15.897   16.680 sdBO 22 0
40 Feige 48 HS* 11 47 14.4978515760 +61 15 31.789400364   13.12 13.28     sdB 119 0
41 V* V551 Hya HS* 12 00 54.6503605776 -27 24 44.948207556   14.47 14.41     sdB+ 14 0
42 PG 1219+534 HS* 12 21 29.0914917288 +53 04 36.796062144   12.41       sdB 84 1
43 BD-07 3477 HS* 12 44 20.2386233232 -08 40 16.846099536   10.46 10.594 10.895   sdB2VIIHe3 288 1
44 [RWW88] CS 124636.2-631549 HS* 12 49 37.6226470128 -63 32 09.899403252   14.87 14.59 14.80 14.11 sdB6 23 0
45 Cl* NGC 5139 SAW V454 HB* 13 26 15.00 -47 33 05.8 16.721 18.205 18.42 18.415 18.57 ~ 6 0
46 Cl* NGC 5139 SAW V453 HB* 13 26 24.74 -47 24 51.8 16.825 18.300 18.54 18.583 18.74 ~ 7 0
47 Cl* NGC 5139 SAW V452 HB* 13 27 04.84 -47 32 32.3   18.438 18.42 18.638 18.21 ~ 3 0
48 Cl* NGC 5139 SAW V451 HB* 13 27 11.77 -47 32 29.0 16.813 18.299 18.46 18.547 18.52 ~ 6 0
49 Cl* NGC 5139 BPB 149467 HB* 13 27 14.9630 -47 30 50.853 17.176 18.506 18.680 18.719 18.230 ~ 6 0
50 PG 1325+102 HS* 13 27 48.5600155368 +09 54 51.049107756   13.73 13.98 14.29   sdBO 57 1
51 V* NY Vir HS* 13 38 48.1466908176 -02 01 49.207286748   13.43 13.66 13.75   sdB1VIIHe1 226 1
52 PG 1338+481 HS* 13 40 08.8343501400 +47 51 51.855930324   13.33 13.588     sdB 40 0
53 V* V361 Hya HS* 14 05 33.018072 -27 01 34.01328   15.446 15.258 15.161   sdB+ 123 0
54 PG 1419+081 HS* 14 21 38.1803253744 +07 53 19.619422692 13.93 15.03 15.10 15.34   sdB+G5 14 0
55 V* V594 Vir HS* 14 45 14.9321910288 +00 02 48.951937248   17.3   17.6   sdBHe 15 0
56 HE 1450-0957 HS* 14 53 24.1992983688 -10 09 21.837230352   15.10 15.27     sdB 10 0
57 EC 15094-1725 HS* 15 12 14.5151781840 -17 36 41.753626704   17.5 16.80 17.4   sdB 8 0
58 BPS BS 16559-0077 HS* 15 24 03.0361794768 +01 34 21.712139508   13.993 13.961 14.083   sdB+K1V 16 0
59 V* V499 Ser HS* 16 00 43.6054435536 +07 48 02.886625548           sdOHe 30 0
60 PG 1605+072 HS* 16 08 03.6872637792 +07 04 28.748468964   12.53 12.83 13.18   sdB0.2VIHe3 133 0
61 PG 1613+426 HS* 16 14 46.9286241816 +42 27 35.946945648   13.99 14.39 14.76   sdOA 28 0
62 PG 1618+563B * 16 19 26.5988937384 +56 05 58.593549588   12.16 12.34 12.71   F3 17 1
63 PG 1618+563 HS* 16 19 26.9188578888 +56 06 01.009178568       13.93   sdB0VIIHe8 28 2
64 PG 1627+017 HS* 16 29 35.3015001600 +01 38 18.794125032   11.32       sdB3VIIHe3 42 0
65 GALEX J164214.3+425233 HS* 16 42 14.2124746944 +42 52 34.008162708     15.71     sdB 15 0
66 GALEX J164956.2-241734 HS* 16 49 56.2316994192 -24 17 34.401926580   16.9 16.23 16.239 15.93 sdB 5 0
67 PG 1657+416 HS* 16 58 41.8362739056 +41 31 15.512739888   16.07 16.23 16.45   sdB+G5 21 0
68 SBSS 1716+581 HS* 17 17 22.0640015472 +58 05 58.714468440   16.6 16.78 16.7   sdO 19 1
69 PG 1716+426 HS* 17 18 03.8584522800 +42 34 12.562847292   13.69 13.97     sdB2VIIHe3 114 0
70 V* LS Dra HS* 18 24 52.4115107856 +57 47 23.528193612           sdOB 21 0
71 2MASS J18560707+4319192 HS* 18 56 07.0408028424 +43 19 19.273788552           sdB 20 0
72 GALEX J190221.9+485052 HS* 19 02 21.9425643552 +48 50 52.195229160   17.1   17.1   sdB+dM 32 0
73 2MASS J19033701+3836126 HS* 19 03 37.0267191120 +38 36 12.604186980           sdB 32 0
74 FBS 1903+432 HS* 19 05 06.3763958616 +43 18 31.220048592   14.978 15.218 15.505   sdB 31 1
75 2MASS J19090714+3756143 HS* 19 09 07.1451475032 +37 56 14.224028784           sdB 45 0
76 Kepler-429 HS* 19 09 33.4136944848 +46 59 04.108493616           sdB 33 0
77 Cl* NGC 6791 KU B3 HS* 19 20 45.1716372576 +37 49 31.272065724 16.65 16.4 17.809 18.3   sdB 26 0
78 Gaia DR2 2051105754408746880 HS* 19 21 03.3493572696 +37 46 59.623553532           sdB 13 1
79 Cl* NGC 6791 KU B4 HS* 19 21 12.8916906768 +37 45 51.138205956 16.73 17.69 17.873 17.910 18.02 sdB 42 0
80 2MASS J19230068+3715044 HS* 19 23 00.6774342816 +37 15 04.493380896           sdB/sdO 21 0
81 UCAC4 686-068711 HS* 19 24 58.1497315488 +47 07 53.672050236   15.649 15.640 15.947   sdB 39 0
82 UCAC4 698-068637 HS* 19 26 34.1086958928 +49 30 29.555956908   14.548 14.859 15.096   sdB 39 1
83 SDSS J192709.14+381026.3 HS* 19 27 09.1454735328 +38 10 26.393243016   17.2   17.3   sdB 22 0
84 SDSS J192715.88+380808.2 HS* 19 27 15.8823018024 +38 08 08.280985956   16.3   16.9   sdB+dM 26 0
85 2MASS J19310336+4413261 HS* 19 31 03.3754994016 +44 13 25.530992364           sdB 18 1
86 KPD 1930+2752 HS* 19 32 14.8088063952 +27 58 35.445679608 12.80 13.75 13.82     sdB 159 0
87 2MASS J19343993+4758117 HS* 19 34 39.9403400856 +47 58 11.532614808           sdB 29 1
88 GALEX J193832.5+560944 HS* 19 38 32.4834894312 +56 09 44.574150636           sdB 6 0
89 Kepler-451 HS* 19 38 32.6123816016 +46 03 59.135231952   12.17 12.69 12.46 12.399 sdB+dM 86 0
90 Kepler-70 HS* 19 45 25.4745687168 +41 05 33.882248544 13.80 14.71 14.87 15.43 15.72 sdB 74 1
91 UCAC4 689-072699 HS* 19 53 08.3854563936 +47 43 00.177113460   14.695 14.902 15.419   sdB 29 1
92 DENIS J200816.4-175310 HS? 20 08 16.3426899768 -17 53 10.633167564   16.8   17.1 17.07 ~ 18 0
93 GALEX J201337.6+092801 HS* 20 13 37.6121506872 +09 28 01.414212024   12.02 12.23 12.82   sdOB 12 0
94 CD-40 13747 HS* 20 15 04.7880723672 -40 05 44.110361148 11.91 12.09 11.82     sdO 49 0
95 BPS CS 22880-0018 HS* 20 36 41.3091042960 -19 15 00.325331964 14.26 15.34 15.60     sdB 18 0
96 LS IV -14 116 HS* 20 57 38.8746228912 -14 25 43.991016852 11.63 12.73 13.02 13.28   sdB0.5VIIHe18 79 0
97 KPD 2109+4401 HS* 21 11 47.6445824136 +44 13 50.620755936 12.14 13.11 13.30 13.64   sdB 67 0
98 HS 2125+1105 HS* 21 27 32.1684818232 +11 18 16.829735040   15.9   16.4   sdB 10 0
99 PHL 44 HS* 21 35 13.3327203264 -13 33 22.555121148 11.77 12.86 13.16     sdB 21 0
100 JL 82 HS* 21 36 01.2957494184 -72 48 27.222290172 11.26 12.44 12.41 12.67   sdB 39 0
101 HS 2149+0847 HS* 21 51 54.3268752696 +09 01 21.014967612   16.4   15.8   sdOB 15 0
102 PG 2151+089 HS* 21 54 18.6553285752 +09 11 43.161873288   16.3   15.2   sdOB 16 0
103 HE 2151-1001 HS* 21 54 31.5037631664 -09 47 30.184971324   15.6       sdB 10 0
104 PB 7032 HS* 21 58 04.7586318720 -04 40 39.375586812 12.182 12.848 13.22     sdB 14 0
105 V* V391 Peg HS* 22 04 12.1045050096 +26 25 07.819080600   14.41 14.61 15.00   sdB 110 2
106 PHL 252 HS* 22 24 57.2291621736 -31 37 18.873308964   13.49 13.9 14.29 14.00 sdO 14 0
107 LB 1516 HS* 23 01 56.1476771616 -48 03 48.474964296   12.74 13.02     sdB 31 0
108 PG 2303+019 HS* 23 06 22.3561075224 +02 09 05.952751128   16.2 16.23 16.2   sdB 16 0
109 Balloon 90100001 HS* 23 15 21.4810390968 +29 05 01.433373360   11.90 12.30     sdB 91 0
110 GD 1110 HS* 23 19 24.4299110400 -08 52 37.936761780   12.778 12.947 13.265 13.179 sdB 38 0
111 GALEX J233406.1+462250 HS* 23 34 06.1072894272 +46 22 49.318553244   16.0   16.6   sdOB 11 0
112 V* EQ Psc HS* 23 34 34.6314973464 -01 19 36.929325288   12.823 12.780 13.556 13.243 sdB 28 0
113 CD-35 15910 HS* 23 44 22.0084841208 -34 27 00.387634032   10.71 11.00 11.255   sdBHe1 52 0

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